//
//  TabControl.m
//  model
//
//  Created by Drew on 2018/11/1.
//  Copyright © 2018年 Mine. All rights reserved.
//

#import "TabControl.h"

@interface TabControl()
@property (weak, nonatomic) IBOutlet UIView *indicator;
@property (weak, nonatomic) IBOutlet UILabel *label0;
@property (weak, nonatomic) IBOutlet UILabel *label1;
@property (nonatomic, strong) UIView* view;
@end
@implementation TabControl

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        [self initView];
    }
    return self;
}

- (instancetype)initWithCoder:(NSCoder *)aDecoder {
    if (self = [super initWithCoder:aDecoder]) {
        [self initView];
    }
    return self;
}

- (void) initView {
    NSBundle *bundle = [NSBundle bundleForClass:[self class]];
    NSString *className = NSStringFromClass([self class]);
    UIView *view = [[bundle loadNibNamed:className owner:self options:nil] firstObject];
    view.frame = self.bounds;
    view.backgroundColor = [UIColor clearColor];
    [self addSubview:view];
    self.clipsToBounds = YES;
    _view = view;
    _index = 0;
    _normalColor = [UIColor blackColor];
    _activeColor = [UIColor whiteColor];
}

-(void)layoutSubviews {
    self.layer.cornerRadius = self.frame.size.height / 2;
    self.indicator.layer.cornerRadius = self.frame.size.height / 2;
}

- (void)setIndex:(NSInteger)index {
    if(_index != index) {
        [UIView animateWithDuration:0.25
                              delay:0
                            options:UIViewAnimationOptionCurveEaseOut
                         animations:^{
                             self.indicator.transform = CGAffineTransformMakeTranslation(self.indicator.frame.size.width * index, 0);
                             if(index == 0) {
                                 self.label0.textColor = self.activeColor;
                                 self.label1.textColor = self.normalColor;
                             } else {
                                 self.label0.textColor = self.normalColor;
                                 self.label1.textColor = self.activeColor;
                             }
                         }
                         completion:nil];
    }
    _index = index;
}

- (IBAction)tapTab:(id)sender {
    NSInteger index = ((UITapGestureRecognizer*)sender).view.tag;
    if(self.index != index) {
        [self setIndex:index];
        if (self.delegate) {
            [self.delegate tabChange:index];
        }
    }
}

- (void)setBackgroungColor:(UIColor *)backgroungColor {
    self.view.backgroundColor = backgroungColor;
}

- (void)setIndicatorColor:(UIColor *)indicatorColor {
    self.indicator.backgroundColor = indicatorColor;
}

-(void)setColor:(UIColor *)color forState:(TabControlState)state {
    switch (state) {
        case TabControlStateNormal:
            self.normalColor = color;
            break;
        case TabControlStateActive:
            self.activeColor = color;
            break;
        default:
            break;
    }
}

- (void)setActiveColor:(UIColor *)activeColor {
    _activeColor = activeColor;
    if(self.index == 0) {
        self.label0.textColor = self.activeColor;
        self.label1.textColor = self.normalColor;
    } else {
        self.label0.textColor = self.normalColor;
        self.label1.textColor = self.activeColor;
    }
}

- (void)setNormalColor:(UIColor *)normalColor {
    _normalColor = normalColor;
    if(self.index == 0) {
        self.label0.textColor = self.activeColor;
        self.label1.textColor = self.normalColor;
    } else {
        self.label0.textColor = self.normalColor;
        self.label1.textColor = self.activeColor;
    }
}

- (void)setTab1:(NSString *)tab1 {
    self.label0.text = tab1;
}

- (void)setTab2:(NSString *)tab2 {
    self.label1.text = tab2;
}
@end